Speedometer controlled speed governor



Sept. 29, 1942. s, FLORIO SPEEDOMETER CONTROLLED SPEED common Filed March 22, 1941 2 Sheets-Sheet '1 Witnesses I iz-a'.

Sept. 29; 1942. s. FLORIO SPEEDQMETER CONTROLLED SPEED GOVERNOR Filed March 22, 1941 2 Sheets-Sheet 2 Patented Sept. 29, 1942 UNITED SPEEDOMETER CONTROLLED SPEED GOVERNOR Sollie Florio, Chicago, 111.

Application March 22; 1941, Serial No. 384,649

3 Claims.

This invention relates to a speed-controlled1 valve for an internal combustion engine, and particularly to an arrangement in which the operating linkage of the valve cannot be tampered with and in which an operating motor cooperable with the linkage is sealed against the deleterious effects of hot gases.

It is an object of this invention to provide a control valve for an internal combustion engine, which valve is operably connected with a motor through linkage means sealed against unauthorized tampering with the linkage, and to provide means sealing the motor against deleterious hot gases from the engine.

Another object of the invention is to have an adjustment device sealed in a casing to prevent removal, which cannot be plugged, altered, or manipulated in any manner.

A still further object of the invention is to provide a device of the character described, which will be simple in construction and which may be produced along lines convenient for low cost manufacture, and which will, at the same time, be highly eflicient for carrying out the purposes for which it is intended.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention consists in certain novel features of construction and arrangements of parts hereinafter more fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportion, size and minor details of the structure may be made without departing from the spirit or sacrificing any of the advantages of the invention.

I have illustrated in the accompanying drawings a preferred embodiment of the invention, from an inspection of which, when considered in connection with the following description, the invention, its mode of construction and assembly,

and many of its advantages, will be readily understood and appreciated.

Referring to the drawings in which similar characters of reference are employed to indicate corresponding parts throughout the several figures of the drawings,

Fig. 1 is a sectional plan view of the speedometer controlled speed governor on line l-l of Fig. 2, showing the speedometer in rear elevation.

Fig. 2 is a longitudinal sectional View through the speedometer controlled speed governor on line 22 of Fig. 1.

Fig. 3 is a cross sectional view on line 3-3 of Fig. 1, showing the butterfly valve, the manifold and the operating mechanism. 7

Fig. 4 is a cross sectional view of the speedometer on line 4-4 of Fig. 1.

Fig. 5 is a perspective view of the casing.

Fig. 6 is a modified view of the dial with bushing of insulated material for the contact post.

Referring to the drawings more specifically by characters of reference, the main body I comprises a cylindrical portion 2, a front dished portion 3 with the conical portion 4 thereon, having a receptacle 13 and a rib 56 (Figure 2) connected to a body portion 5, a hinged cover 6, with a hinge 53, closing means 54 and 55, and a seal 59 for preventing unauthorized removal of the cover.

The cylindrical portion 2 houses a motor 1 having a core 12. The motor I has a longitudinal groove 8, into which adjusting screws 9, 9, enter, and which screws are rotatably secured in the wall of the housing to prevent displacement of the motor.

The front end of the motor I has a series of recesses 51, supporting compression springs Ii. An adjusting screw [0, rotatably secured at the center of the cover 6, together with springs ll, controls the speed of the vehicle by permitting a variation in the movement of a longitudinally slidable rod I5 which actuates a butterfly valve 25.

The adjusting screw H] has a seal 59 in a boss 5B of the cover 6, preventing unauthorized removal of the motor.

The motor I has terminals 34 and 35 attached to wires of cable 39, one of which wires, 16, leads from an ignition switch 18, while the other, 11, leads from a contact post 38 of the speedometer (Figure 4). The ignition switch 18 is mounted in an accessible position and renders the entire device operative or inoperative as it is closed or opened.

The longitudinally slidable rod l5 moves in a bushing l3 which is disposed in a hole I4 of the conical portion 4.

The longitudinally slidable rod l5 has an armature 33 at one end, and a slotted portion It at its other end (Figure 2) connected to a link ll which is permitted to swing freely. on a pin l8, which pin is secured side portions 6il--69 of the slotted portion I6.

A spring 29 has one end attached in a hole 86 to the link I1, and has its other end attached to an adjustment screw 30, which is rotatably secured within a post 6| anchored to the body portion 5 (Figure 2). The link I! has a series of holes 28.

A bell crank lever IQ for operating a valve 251 has a slotted portion 15 secured to the link l! by an adjusting screw 28 extending through apertures 28 in said slotted portion 15 and through one of apertures 28 in link IT.

The bell crank lever l9 has a hub portion 62 (Figure 3), with a square hole 2|, in which is fitted the square end 63 of a shaft 23 of the butterfly valve 25, and which square end is held in position by the wedge 14.

The shaft 23 is rotatably mounted in bearings 21 and 64, suitably disposed in the body portion 5, and the shaft 23 has a recess 24 (Figure 2) for the reception of the butterfly valve 25, said valve being secured to the shaft 23 by screws 2626.

The speedometer 36 is mounted in the usual manner on the instrument board of the vehicle (not shown), and has a fibre dial 3? (Figure 4) with the usual speed-indicating numerals thereon and a series of holes 89 (Figure 1), permit ting the adjustable setting of the contact post 38, for grounding the circuit of wires 16 and ll at the requisite or predetermined speed of the vehicle. Nuts retain the contact post 38 and. the wire I! in fixed relation. Speed responsive hand 47, indicating in the usual manner the speed at which the vehicle is traveling and being actuated in the usual way from a transmission by a cable, and which hand has a square recess in the lower portion of its hub 48, in which is secured to a square portion 59 of a shaft 5| by the screw 49.

A casing 32 is comprised of a top flange 4| and a bottom flange 42 (Figures 1 and 5), two side flanges, one of which, 3|, has a hole 64 to permit the passage of the longitudinally slidable rod l5 therewith, while the other side flange 65 is without a hole,-and a web 84.

The top flange 4| and the bottom flange 42 of casing 32 have centrally disposed, adjacent to the outer edges thereof, aligned openings 66, 66, which register with the corresponding openings of the carburetor 61, and the intake manifold 68, respectively. Holes 44, in the top flange 4|, and in the bottom flange 42, permit the passage of the bolts 45, 45, held securely in the manifold 68. Nuts 69, 69, secure the bottom flange 10 of the carburetor 61 to the upper surface of the body portion 5, when assembled. Seals 12, 12, prevent the removal of the casing.

Gaskets 52 are disposed between the flange l0 and the top flange 4|, the bottom flange 42 and the flange II, the inner surface of the top flange 4| and top surface of the body portion 5, and the inner surface of the bottom flange 42 and the bottom surface of the body portion 5. The gaskets are provided with the openings 66 and with the holes 44, to provide uninterrupted communication between the openings of the carburetor 67 and the manifold 68, and permitting at the same time the passage of the manifold bolts 45, 45, re-

A brass bushing I3 is disposed in a bore I4 of the conical portion 4; the rod I5 is pushed through until its armature 33 is in the receptacle 13. One end of the link I! is positioned within the slotted portion l6 of the longitudinally slidable rod l5, on the pin I8. The resilient means 29' is attached to the link and to the adjusting screw 30, being rotatably secured to the post 6|,

which is made'fast to the body portion 5.

Theshaft 23 is disposed in the bearings 21 and 64 within the body portion 5, and the butterfly valve 25 is mounted in the recess 24 of the shaft 23 by the screws 25, 26. The hub portion 62 of the bell crank lever I9 is placed over the square portion 63 of the shaft 23, and the wedge 14 is positioned. The slotted portion 15 of the bell crank lever I9 is secured to the requisite hole 49 of the series 28 of the link H, by the adjusting screw 20.

The motor 1, with the springs set in the pockets 5?, is disposed within the interior of the cylindrical portion 2; the hinged cover 6 is closed and the adjusting screw I0 is advanced until the springs find the pockets 19, disposed within the front dished portion 3. The adjusting screws 9-9 enter the longitudinal groove 8. The seals 59, being secured in'their respective places, prevent the removal of the motor.

The fibre dial 3'! is positioned in the speedometer casing 36, the contact post 38 is placed in the requisite hole of the series 89, and a nut is secured on the contact post 38. The hand 4'! is positioned by its hub portion 48 on the square portion 58 of the shaft 5|, and secured to it by the screw 49. The contact post 38 is connected to the wire "ll of the cable 39, secured in its position by the nut. The wire 76, leading from the ignition switch 18 to the interior of the casing, is connected to the cable 39. The glass dial cover 89 is positioned, and the seals 14 are secured in the top screws, preventing the removal of the speedometer.

The casing 32 is placed over the body portion 5, with the gaskets 52 in their related positions and placed over the manifold bolts 45, 45, until positioned on the flange H of the manifold 68. The bottom flange 10 of the carburetor 61 is positioned over the bolts 45, 45, and secured to the top flange of the casing 4| by the nuts 69, 69. The seals 12, 12, are secured in their respective places and prevent the removal of the operating mechanism.

The operation of the device When the speedometer is set for the requisite speed limit of the vehicle, and is sealed, the device will maintain this speed limit under any and all circumstances.

Starting the vehicle by closing the ignition switch 18, the butterfly valve 25, being in the neutral position, gives the benefit of full gas opening to the engine. As soon as the hand 41, being operated from a transmission by a cable, reaches the contact post 38, which grounds the circuit, current is flowing from an electrical source 83 toward the field coils of the motor 1, magnetizing the core l2. The armature 33 is 41, the resilient means 29 actuates the said rod I5 in the opposite direction and takes along the bell crank lever I9, which is rotating the butterfly valve 25 in a manner permitting same to assume its neutral position, thereby again ensuring full gas opening to the motor until a new contact is made.

I claim:

1. A speed-limiting control means for an engine having an intake suction line, said control means comprising a unitary structure having a portion formed with a passage and constructed so as to be insertable in and form a part of the suction line and a second portion forming a motor chamber, a valve in said passage, a valve spindle connected to said valve and extending from said first body portion, linkage operatively connected to said spindle, means cooperating with said first body portion to form a closed chamber enclosing said linkage, a third body portion extending between said first body portion and said second body portion, said third body portion having a duct therethrough so related to said closed chamber and said motor chamber that any leakage of gas to said closed chamber from around the spindle may pass through the duct into said motor chamber, a motor in said motor chamber, an operating rod slidable in said duct and operatively connecting said linkage with the motor, and means including said rod substantially closing said duct against fiow of fluid through said duct to said motor chamber.

2. A speed-limiting control means for an engine having an intake suction line, said control means comprising a unitary structure having a portion formed with a passage and constructed so as to be insertable in and form a part of the suction line and a second portion forming a motor chamber, a valve in said passage, a valve spindle connected to said valve and extending from said first body portion, linkage operatively connected to said spindle, a closure member fitted about said first body portion to form a closed chamber therewith enclosing said linkage, means sealing said closure member to said first body portion, a third body portion extending between said first body portion and said second body portion, said third body portion having a duct therethrough communicating with said closed chamber and said motor chamber, a motor in said chamber, an operating'rod slidable in said duct and operatively connecting said linkage with said motor, an armature on said rod and within said motor chamber, and means including said rod substantially closing said duct against flow of fiuid through said duct to said motor chamher.

3. A speed-limiting control means for an engine having an intake suction line, said control means comprising a unitary structure having a portion formed with a passage and constructed so as to be insertable in and form a part of the suction line and a second portion forming a motor chamber, a valve in said passage, a valve spindle connected to said valve and extending from said first body portion, linkage operatively connected to said spindle, a closure member fitted about said first body portion to form a closed chamber therewith enclosing said linkage, means sealing said closure member to said first body portion, a third body portion extending between said first body portion and said second body portion, said third body portion having a duct therethrough communicating with said closed chamber and said motor chamber, a motor in said motor chamber, an operating rod slidable in said duct and operatively connecting said linkage with said motor, an armature on said rod and within said motor chamber, means on said second body portion and in engagement with said motor adjustable to adjustably move said motor in one direction in said second body portion, resilient means normally urging said motor in an opposite direction of movement, and means including said rod normally closing said duct against flow of fluid through said duct to said motor chamber.

SOLLIE FLORIO. 

